Home / 4,931.16-7,395.12-1,643.28

Finding the Fourth Proportional to 4,931.16, 7,395.12 and 1,643.28

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Solution

The fourth proportional to 4,931.16, 7,395.12 and 1,643.28 is: 2,464.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.16 : 7,395.12 = 1,643.28 : x
  2. Step 2: Convert to fraction form
    4,931.16/7,395.12 = 1,643.28/x
  3. Step 3: Cross multiply
    4,931.16x = 7,395.12 × 1,643.28
  4. Step 4: Simplify right side
    4,931.16x = 12,152,252.79
  5. Step 5: Solve for x
    x = 12,152,252.79/4,931.16
  6. Step 6: Final answer
    x = 2,464.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.