Home / 2,417.40-3,336.05-1,355.22

Finding the Fourth Proportional to 2,417.40, 3,336.05 and 1,355.22

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Solution

The fourth proportional to 2,417.40, 3,336.05 and 1,355.22 is: 1,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.40 : 3,336.05 = 1,355.22 : x
  2. Step 2: Convert to fraction form
    2,417.40/3,336.05 = 1,355.22/x
  3. Step 3: Cross multiply
    2,417.40x = 3,336.05 × 1,355.22
  4. Step 4: Simplify right side
    2,417.40x = 4,521,074.90
  5. Step 5: Solve for x
    x = 4,521,074.90/2,417.40
  6. Step 6: Final answer
    x = 1,870.22

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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.