Home / 4,931.90-7,395.10-1,643.19

Finding the Fourth Proportional to 4,931.90, 7,395.10 and 1,643.19

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Solution

The fourth proportional to 4,931.90, 7,395.10 and 1,643.19 is: 2,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.90 : 7,395.10 = 1,643.19 : x
  2. Step 2: Convert to fraction form
    4,931.90/7,395.10 = 1,643.19/x
  3. Step 3: Cross multiply
    4,931.90x = 7,395.10 × 1,643.19
  4. Step 4: Simplify right side
    4,931.90x = 12,151,584.15
  5. Step 5: Solve for x
    x = 12,151,584.15/4,931.90
  6. Step 6: Final answer
    x = 2,463.88

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1.5x scale

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.