Home / 2,981.04-4,116.36-2,098.80

Finding the Fourth Proportional to 2,981.04, 4,116.36 and 2,098.80

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Solution

The fourth proportional to 2,981.04, 4,116.36 and 2,098.80 is: 2,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.04 : 4,116.36 = 2,098.80 : x
  2. Step 2: Convert to fraction form
    2,981.04/4,116.36 = 2,098.80/x
  3. Step 3: Cross multiply
    2,981.04x = 4,116.36 × 2,098.80
  4. Step 4: Simplify right side
    2,981.04x = 8,639,416.37
  5. Step 5: Solve for x
    x = 8,639,416.37/2,981.04
  6. Step 6: Final answer
    x = 2,898.12

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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.