Home / 3,931.77-5,426.16-2,603.16

Finding the Fourth Proportional to 3,931.77, 5,426.16 and 2,603.16

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Solution

The fourth proportional to 3,931.77, 5,426.16 and 2,603.16 is: 3,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.77 : 5,426.16 = 2,603.16 : x
  2. Step 2: Convert to fraction form
    3,931.77/5,426.16 = 2,603.16/x
  3. Step 3: Cross multiply
    3,931.77x = 5,426.16 × 2,603.16
  4. Step 4: Simplify right side
    3,931.77x = 14,125,162.67
  5. Step 5: Solve for x
    x = 14,125,162.67/3,931.77
  6. Step 6: Final answer
    x = 3,592.57

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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.