Home / 2,949.29-4,070.04-1,690.42

Finding the Fourth Proportional to 2,949.29, 4,070.04 and 1,690.42

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Solution

The fourth proportional to 2,949.29, 4,070.04 and 1,690.42 is: 2,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.29 : 4,070.04 = 1,690.42 : x
  2. Step 2: Convert to fraction form
    2,949.29/4,070.04 = 1,690.42/x
  3. Step 3: Cross multiply
    2,949.29x = 4,070.04 × 1,690.42
  4. Step 4: Simplify right side
    2,949.29x = 6,880,084.34
  5. Step 5: Solve for x
    x = 6,880,084.34/2,949.29
  6. Step 6: Final answer
    x = 2,332.79

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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.