Home / 1,981.50-2,972.07-595.15

Finding the Fourth Proportional to 1,981.50, 2,972.07 and 595.15

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Solution

The fourth proportional to 1,981.50, 2,972.07 and 595.15 is: 892.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.50 : 2,972.07 = 595.15 : x
  2. Step 2: Convert to fraction form
    1,981.50/2,972.07 = 595.15/x
  3. Step 3: Cross multiply
    1,981.50x = 2,972.07 × 595.15
  4. Step 4: Simplify right side
    1,981.50x = 1,768,827.46
  5. Step 5: Solve for x
    x = 1,768,827.46/1,981.50
  6. Step 6: Final answer
    x = 892.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.