Home / 1,165.81-1,748.80-507.70

Finding the Fourth Proportional to 1,165.81, 1,748.80 and 507.70

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Solution

The fourth proportional to 1,165.81, 1,748.80 and 507.70 is: 761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.81 : 1,748.80 = 507.70 : x
  2. Step 2: Convert to fraction form
    1,165.81/1,748.80 = 507.70/x
  3. Step 3: Cross multiply
    1,165.81x = 1,748.80 × 507.70
  4. Step 4: Simplify right side
    1,165.81x = 887,869.29
  5. Step 5: Solve for x
    x = 887,869.29/1,165.81
  6. Step 6: Final answer
    x = 761.59

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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.