Home / 1,988.65-2,981.81-601.57

Finding the Fourth Proportional to 1,988.65, 2,981.81 and 601.57

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Solution

The fourth proportional to 1,988.65, 2,981.81 and 601.57 is: 902.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.65 : 2,981.81 = 601.57 : x
  2. Step 2: Convert to fraction form
    1,988.65/2,981.81 = 601.57/x
  3. Step 3: Cross multiply
    1,988.65x = 2,981.81 × 601.57
  4. Step 4: Simplify right side
    1,988.65x = 1,793,767.44
  5. Step 5: Solve for x
    x = 1,793,767.44/1,988.65
  6. Step 6: Final answer
    x = 902.00

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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.