Home / 1,037.85-1,556.80-307.45

Finding the Fourth Proportional to 1,037.85, 1,556.80 and 307.45

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Solution

The fourth proportional to 1,037.85, 1,556.80 and 307.45 is: 461.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.85 : 1,556.80 = 307.45 : x
  2. Step 2: Convert to fraction form
    1,037.85/1,556.80 = 307.45/x
  3. Step 3: Cross multiply
    1,037.85x = 1,556.80 × 307.45
  4. Step 4: Simplify right side
    1,037.85x = 478,635.82
  5. Step 5: Solve for x
    x = 478,635.82/1,037.85
  6. Step 6: Final answer
    x = 461.18

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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.