Home / 4,857.30-7,281.15-1,931.70

Finding the Fourth Proportional to 4,857.30, 7,281.15 and 1,931.70

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Solution

The fourth proportional to 4,857.30, 7,281.15 and 1,931.70 is: 2,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,857.30 : 7,281.15 = 1,931.70 : x
  2. Step 2: Convert to fraction form
    4,857.30/7,281.15 = 1,931.70/x
  3. Step 3: Cross multiply
    4,857.30x = 7,281.15 × 1,931.70
  4. Step 4: Simplify right side
    4,857.30x = 14,064,997.46
  5. Step 5: Solve for x
    x = 14,064,997.46/4,857.30
  6. Step 6: Final answer
    x = 2,895.64

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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.