Home / 4,877.30-7,312.35-2,101.70

Finding the Fourth Proportional to 4,877.30, 7,312.35 and 2,101.70

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Solution

The fourth proportional to 4,877.30, 7,312.35 and 2,101.70 is: 3,151.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.30 : 7,312.35 = 2,101.70 : x
  2. Step 2: Convert to fraction form
    4,877.30/7,312.35 = 2,101.70/x
  3. Step 3: Cross multiply
    4,877.30x = 7,312.35 × 2,101.70
  4. Step 4: Simplify right side
    4,877.30x = 15,368,366.00
  5. Step 5: Solve for x
    x = 15,368,366.00/4,877.30
  6. Step 6: Final answer
    x = 3,151.00

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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.