Home / 3,374.40-4,649.76-2,488.80

Finding the Fourth Proportional to 3,374.40, 4,649.76 and 2,488.80

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Solution

The fourth proportional to 3,374.40, 4,649.76 and 2,488.80 is: 3,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.40 : 4,649.76 = 2,488.80 : x
  2. Step 2: Convert to fraction form
    3,374.40/4,649.76 = 2,488.80/x
  3. Step 3: Cross multiply
    3,374.40x = 4,649.76 × 2,488.80
  4. Step 4: Simplify right side
    3,374.40x = 11,572,322.69
  5. Step 5: Solve for x
    x = 11,572,322.69/3,374.40
  6. Step 6: Final answer
    x = 3,429.45

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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.