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Finding the Fourth Proportional to 845.04, 1,159.95 and 749.70

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Solution

The fourth proportional to 845.04, 1,159.95 and 749.70 is: 1,029.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.04 : 1,159.95 = 749.70 : x
  2. Step 2: Convert to fraction form
    845.04/1,159.95 = 749.70/x
  3. Step 3: Cross multiply
    845.04x = 1,159.95 × 749.70
  4. Step 4: Simplify right side
    845.04x = 869,614.52
  5. Step 5: Solve for x
    x = 869,614.52/845.04
  6. Step 6: Final answer
    x = 1,029.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.