Home / 1,542.95-2,128.77-944.82

Finding the Fourth Proportional to 1,542.95, 2,128.77 and 944.82

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Solution

The fourth proportional to 1,542.95, 2,128.77 and 944.82 is: 1,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.95 : 2,128.77 = 944.82 : x
  2. Step 2: Convert to fraction form
    1,542.95/2,128.77 = 944.82/x
  3. Step 3: Cross multiply
    1,542.95x = 2,128.77 × 944.82
  4. Step 4: Simplify right side
    1,542.95x = 2,011,304.47
  5. Step 5: Solve for x
    x = 2,011,304.47/1,542.95
  6. Step 6: Final answer
    x = 1,303.54

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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.