Home / 2,515.08-3,470.90-1,520.16

Finding the Fourth Proportional to 2,515.08, 3,470.90 and 1,520.16

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Solution

The fourth proportional to 2,515.08, 3,470.90 and 1,520.16 is: 2,097.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.08 : 3,470.90 = 1,520.16 : x
  2. Step 2: Convert to fraction form
    2,515.08/3,470.90 = 1,520.16/x
  3. Step 3: Cross multiply
    2,515.08x = 3,470.90 × 1,520.16
  4. Step 4: Simplify right side
    2,515.08x = 5,276,323.34
  5. Step 5: Solve for x
    x = 5,276,323.34/2,515.08
  6. Step 6: Final answer
    x = 2,097.87

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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.