Home / 1,151.67-1,586.08-1,077.55

Finding the Fourth Proportional to 1,151.67, 1,586.08 and 1,077.55

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Solution

The fourth proportional to 1,151.67, 1,586.08 and 1,077.55 is: 1,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.67 : 1,586.08 = 1,077.55 : x
  2. Step 2: Convert to fraction form
    1,151.67/1,586.08 = 1,077.55/x
  3. Step 3: Cross multiply
    1,151.67x = 1,586.08 × 1,077.55
  4. Step 4: Simplify right side
    1,151.67x = 1,709,080.50
  5. Step 5: Solve for x
    x = 1,709,080.50/1,151.67
  6. Step 6: Final answer
    x = 1,484.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.