Home / 2,488.88-3,434.64-1,440.92

Finding the Fourth Proportional to 2,488.88, 3,434.64 and 1,440.92

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Solution

The fourth proportional to 2,488.88, 3,434.64 and 1,440.92 is: 1,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.88 : 3,434.64 = 1,440.92 : x
  2. Step 2: Convert to fraction form
    2,488.88/3,434.64 = 1,440.92/x
  3. Step 3: Cross multiply
    2,488.88x = 3,434.64 × 1,440.92
  4. Step 4: Simplify right side
    2,488.88x = 4,949,041.47
  5. Step 5: Solve for x
    x = 4,949,041.47/2,488.88
  6. Step 6: Final answer
    x = 1,988.46

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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.