Home / 1,140.47-1,573.04-1,102.37

Finding the Fourth Proportional to 1,140.47, 1,573.04 and 1,102.37

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Solution

The fourth proportional to 1,140.47, 1,573.04 and 1,102.37 is: 1,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.47 : 1,573.04 = 1,102.37 : x
  2. Step 2: Convert to fraction form
    1,140.47/1,573.04 = 1,102.37/x
  3. Step 3: Cross multiply
    1,140.47x = 1,573.04 × 1,102.37
  4. Step 4: Simplify right side
    1,140.47x = 1,734,058.73
  5. Step 5: Solve for x
    x = 1,734,058.73/1,140.47
  6. Step 6: Final answer
    x = 1,520.48

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Half scale
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Double scale
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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.