Home / 3,117.80-4,677.15-1,037.90

Finding the Fourth Proportional to 3,117.80, 4,677.15 and 1,037.90

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Solution

The fourth proportional to 3,117.80, 4,677.15 and 1,037.90 is: 1,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.80 : 4,677.15 = 1,037.90 : x
  2. Step 2: Convert to fraction form
    3,117.80/4,677.15 = 1,037.90/x
  3. Step 3: Cross multiply
    3,117.80x = 4,677.15 × 1,037.90
  4. Step 4: Simplify right side
    3,117.80x = 4,854,413.99
  5. Step 5: Solve for x
    x = 4,854,413.99/3,117.80
  6. Step 6: Final answer
    x = 1,557.00

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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.