Home / 4,074.09-5,621.37-3,130.92

Finding the Fourth Proportional to 4,074.09, 5,621.37 and 3,130.92

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Solution

The fourth proportional to 4,074.09, 5,621.37 and 3,130.92 is: 4,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,074.09 : 5,621.37 = 3,130.92 : x
  2. Step 2: Convert to fraction form
    4,074.09/5,621.37 = 3,130.92/x
  3. Step 3: Cross multiply
    4,074.09x = 5,621.37 × 3,130.92
  4. Step 4: Simplify right side
    4,074.09x = 17,600,059.76
  5. Step 5: Solve for x
    x = 17,600,059.76/4,074.09
  6. Step 6: Final answer
    x = 4,320.00

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Half scale
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Double scale
Find fourth proportional to 4,075.09, 5,622.75 and 3,131.92
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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.