Home / 2,479.88-3,421.24-1,417.48

Finding the Fourth Proportional to 2,479.88, 3,421.24 and 1,417.48

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Solution

The fourth proportional to 2,479.88, 3,421.24 and 1,417.48 is: 1,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.88 : 3,421.24 = 1,417.48 : x
  2. Step 2: Convert to fraction form
    2,479.88/3,421.24 = 1,417.48/x
  3. Step 3: Cross multiply
    2,479.88x = 3,421.24 × 1,417.48
  4. Step 4: Simplify right side
    2,479.88x = 4,849,539.28
  5. Step 5: Solve for x
    x = 4,849,539.28/2,479.88
  6. Step 6: Final answer
    x = 1,955.55

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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.