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Finding the Fourth Proportional to 1,341.92, 1,851.81 and 752.48

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Solution

The fourth proportional to 1,341.92, 1,851.81 and 752.48 is: 1,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.92 : 1,851.81 = 752.48 : x
  2. Step 2: Convert to fraction form
    1,341.92/1,851.81 = 752.48/x
  3. Step 3: Cross multiply
    1,341.92x = 1,851.81 × 752.48
  4. Step 4: Simplify right side
    1,341.92x = 1,393,449.99
  5. Step 5: Solve for x
    x = 1,393,449.99/1,341.92
  6. Step 6: Final answer
    x = 1,038.40

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1.5x scale

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.