Home / 2,490.18-3,434.19-2,045.46

Finding the Fourth Proportional to 2,490.18, 3,434.19 and 2,045.46

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Solution

The fourth proportional to 2,490.18, 3,434.19 and 2,045.46 is: 2,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.18 : 3,434.19 = 2,045.46 : x
  2. Step 2: Convert to fraction form
    2,490.18/3,434.19 = 2,045.46/x
  3. Step 3: Cross multiply
    2,490.18x = 3,434.19 × 2,045.46
  4. Step 4: Simplify right side
    2,490.18x = 7,024,498.28
  5. Step 5: Solve for x
    x = 7,024,498.28/2,490.18
  6. Step 6: Final answer
    x = 2,820.88

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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.