Home / 4,070.64-5,617.52-2,278.18

Finding the Fourth Proportional to 4,070.64, 5,617.52 and 2,278.18

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Solution

The fourth proportional to 4,070.64, 5,617.52 and 2,278.18 is: 3,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,070.64 : 5,617.52 = 2,278.18 : x
  2. Step 2: Convert to fraction form
    4,070.64/5,617.52 = 2,278.18/x
  3. Step 3: Cross multiply
    4,070.64x = 5,617.52 × 2,278.18
  4. Step 4: Simplify right side
    4,070.64x = 12,797,721.71
  5. Step 5: Solve for x
    x = 12,797,721.71/4,070.64
  6. Step 6: Final answer
    x = 3,143.91

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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.