Home / 3,728.14-5,138.48-2,547.16

Finding the Fourth Proportional to 3,728.14, 5,138.48 and 2,547.16

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Solution

The fourth proportional to 3,728.14, 5,138.48 and 2,547.16 is: 3,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.14 : 5,138.48 = 2,547.16 : x
  2. Step 2: Convert to fraction form
    3,728.14/5,138.48 = 2,547.16/x
  3. Step 3: Cross multiply
    3,728.14x = 5,138.48 × 2,547.16
  4. Step 4: Simplify right side
    3,728.14x = 13,088,530.72
  5. Step 5: Solve for x
    x = 13,088,530.72/3,728.14
  6. Step 6: Final answer
    x = 3,510.74

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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.