Home / 2,417.90-3,336.75-1,422.99

Finding the Fourth Proportional to 2,417.90, 3,336.75 and 1,422.99

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Solution

The fourth proportional to 2,417.90, 3,336.75 and 1,422.99 is: 1,963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.90 : 3,336.75 = 1,422.99 : x
  2. Step 2: Convert to fraction form
    2,417.90/3,336.75 = 1,422.99/x
  3. Step 3: Cross multiply
    2,417.90x = 3,336.75 × 1,422.99
  4. Step 4: Simplify right side
    2,417.90x = 4,748,161.88
  5. Step 5: Solve for x
    x = 4,748,161.88/2,417.90
  6. Step 6: Final answer
    x = 1,963.76

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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.