Home / 1,140.19-1,573.46-616.22

Finding the Fourth Proportional to 1,140.19, 1,573.46 and 616.22

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Solution

The fourth proportional to 1,140.19, 1,573.46 and 616.22 is: 850.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.19 : 1,573.46 = 616.22 : x
  2. Step 2: Convert to fraction form
    1,140.19/1,573.46 = 616.22/x
  3. Step 3: Cross multiply
    1,140.19x = 1,573.46 × 616.22
  4. Step 4: Simplify right side
    1,140.19x = 969,594.78
  5. Step 5: Solve for x
    x = 969,594.78/1,140.19
  6. Step 6: Final answer
    x = 850.38

Related Problems

Find fourth proportional to 570.09, 786.73 and 308.11
Half scale
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Double scale
Find fourth proportional to 1,141.19, 1,574.84 and 617.22
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.