Home / 3,017.30-4,159.51-2,118.30

Finding the Fourth Proportional to 3,017.30, 4,159.51 and 2,118.30

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Solution

The fourth proportional to 3,017.30, 4,159.51 and 2,118.30 is: 2,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.30 : 4,159.51 = 2,118.30 : x
  2. Step 2: Convert to fraction form
    3,017.30/4,159.51 = 2,118.30/x
  3. Step 3: Cross multiply
    3,017.30x = 4,159.51 × 2,118.30
  4. Step 4: Simplify right side
    3,017.30x = 8,811,084.74
  5. Step 5: Solve for x
    x = 8,811,084.74/3,017.30
  6. Step 6: Final answer
    x = 2,920.19

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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.