Home / 1,549.45-2,138.34-1,053.10

Finding the Fourth Proportional to 1,549.45, 2,138.34 and 1,053.10

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Solution

The fourth proportional to 1,549.45, 2,138.34 and 1,053.10 is: 1,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.45 : 2,138.34 = 1,053.10 : x
  2. Step 2: Convert to fraction form
    1,549.45/2,138.34 = 1,053.10/x
  3. Step 3: Cross multiply
    1,549.45x = 2,138.34 × 1,053.10
  4. Step 4: Simplify right side
    1,549.45x = 2,251,885.85
  5. Step 5: Solve for x
    x = 2,251,885.85/1,549.45
  6. Step 6: Final answer
    x = 1,453.35

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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.