Home / 2,417.20-3,335.91-1,355.06

Finding the Fourth Proportional to 2,417.20, 3,335.91 and 1,355.06

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Solution

The fourth proportional to 2,417.20, 3,335.91 and 1,355.06 is: 1,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.20 : 3,335.91 = 1,355.06 : x
  2. Step 2: Convert to fraction form
    2,417.20/3,335.91 = 1,355.06/x
  3. Step 3: Cross multiply
    2,417.20x = 3,335.91 × 1,355.06
  4. Step 4: Simplify right side
    2,417.20x = 4,520,358.20
  5. Step 5: Solve for x
    x = 4,520,358.20/2,417.20
  6. Step 6: Final answer
    x = 1,870.08

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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.