Home / 2,527.28-3,487.64-1,408.16

Finding the Fourth Proportional to 2,527.28, 3,487.64 and 1,408.16

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Solution

The fourth proportional to 2,527.28, 3,487.64 and 1,408.16 is: 1,943.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,527.28 : 3,487.64 = 1,408.16 : x
  2. Step 2: Convert to fraction form
    2,527.28/3,487.64 = 1,408.16/x
  3. Step 3: Cross multiply
    2,527.28x = 3,487.64 × 1,408.16
  4. Step 4: Simplify right side
    2,527.28x = 4,911,155.14
  5. Step 5: Solve for x
    x = 4,911,155.14/2,527.28
  6. Step 6: Final answer
    x = 1,943.26

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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.