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Finding the Fourth Proportional to 845.17, 1,260.93 and 752.83

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Solution

The fourth proportional to 845.17, 1,260.93 and 752.83 is: 1,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.17 : 1,260.93 = 752.83 : x
  2. Step 2: Convert to fraction form
    845.17/1,260.93 = 752.83/x
  3. Step 3: Cross multiply
    845.17x = 1,260.93 × 752.83
  4. Step 4: Simplify right side
    845.17x = 949,265.60
  5. Step 5: Solve for x
    x = 949,265.60/845.17
  6. Step 6: Final answer
    x = 1,123.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.