Home / 2,913.43-4,020.58-1,587.13

Finding the Fourth Proportional to 2,913.43, 4,020.58 and 1,587.13

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Solution

The fourth proportional to 2,913.43, 4,020.58 and 1,587.13 is: 2,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.43 : 4,020.58 = 1,587.13 : x
  2. Step 2: Convert to fraction form
    2,913.43/4,020.58 = 1,587.13/x
  3. Step 3: Cross multiply
    2,913.43x = 4,020.58 × 1,587.13
  4. Step 4: Simplify right side
    2,913.43x = 6,381,169.12
  5. Step 5: Solve for x
    x = 6,381,169.12/2,913.43
  6. Step 6: Final answer
    x = 2,190.26

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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.