Home / 1,650.79-2,278.16-942.75

Finding the Fourth Proportional to 1,650.79, 2,278.16 and 942.75

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Solution

The fourth proportional to 1,650.79, 2,278.16 and 942.75 is: 1,301.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.79 : 2,278.16 = 942.75 : x
  2. Step 2: Convert to fraction form
    1,650.79/2,278.16 = 942.75/x
  3. Step 3: Cross multiply
    1,650.79x = 2,278.16 × 942.75
  4. Step 4: Simplify right side
    1,650.79x = 2,147,734.16
  5. Step 5: Solve for x
    x = 2,147,734.16/1,650.79
  6. Step 6: Final answer
    x = 1,301.03

Related Problems

Find fourth proportional to 825.40, 1,139.08 and 471.38
Half scale
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Double scale
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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.