Home / 4,985.30-7,477.95-1,702.10

Finding the Fourth Proportional to 4,985.30, 7,477.95 and 1,702.10

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Solution

The fourth proportional to 4,985.30, 7,477.95 and 1,702.10 is: 2,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.30 : 7,477.95 = 1,702.10 : x
  2. Step 2: Convert to fraction form
    4,985.30/7,477.95 = 1,702.10/x
  3. Step 3: Cross multiply
    4,985.30x = 7,477.95 × 1,702.10
  4. Step 4: Simplify right side
    4,985.30x = 12,728,218.70
  5. Step 5: Solve for x
    x = 12,728,218.70/4,985.30
  6. Step 6: Final answer
    x = 2,553.15

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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.