Home / 2,957.18-4,081.11-1,715.18

Finding the Fourth Proportional to 2,957.18, 4,081.11 and 1,715.18

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Solution

The fourth proportional to 2,957.18, 4,081.11 and 1,715.18 is: 2,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.18 : 4,081.11 = 1,715.18 : x
  2. Step 2: Convert to fraction form
    2,957.18/4,081.11 = 1,715.18/x
  3. Step 3: Cross multiply
    2,957.18x = 4,081.11 × 1,715.18
  4. Step 4: Simplify right side
    2,957.18x = 6,999,838.25
  5. Step 5: Solve for x
    x = 6,999,838.25/2,957.18
  6. Step 6: Final answer
    x = 2,367.07

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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.