Home / 1,037.80-1,557.55-1,029.70

Finding the Fourth Proportional to 1,037.80, 1,557.55 and 1,029.70

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Solution

The fourth proportional to 1,037.80, 1,557.55 and 1,029.70 is: 1,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.80 : 1,557.55 = 1,029.70 : x
  2. Step 2: Convert to fraction form
    1,037.80/1,557.55 = 1,029.70/x
  3. Step 3: Cross multiply
    1,037.80x = 1,557.55 × 1,029.70
  4. Step 4: Simplify right side
    1,037.80x = 1,603,809.24
  5. Step 5: Solve for x
    x = 1,603,809.24/1,037.80
  6. Step 6: Final answer
    x = 1,545.39

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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.