Home / 1,545.94-2,132.29-985.83

Finding the Fourth Proportional to 1,545.94, 2,132.29 and 985.83

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Solution

The fourth proportional to 1,545.94, 2,132.29 and 985.83 is: 1,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.94 : 2,132.29 = 985.83 : x
  2. Step 2: Convert to fraction form
    1,545.94/2,132.29 = 985.83/x
  3. Step 3: Cross multiply
    1,545.94x = 2,132.29 × 985.83
  4. Step 4: Simplify right side
    1,545.94x = 2,102,075.45
  5. Step 5: Solve for x
    x = 2,102,075.45/1,545.94
  6. Step 6: Final answer
    x = 1,359.74

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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.