Home / 5,312.24-7,968.52-1,981.36

Finding the Fourth Proportional to 5,312.24, 7,968.52 and 1,981.36

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Solution

The fourth proportional to 5,312.24, 7,968.52 and 1,981.36 is: 2,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.24 : 7,968.52 = 1,981.36 : x
  2. Step 2: Convert to fraction form
    5,312.24/7,968.52 = 1,981.36/x
  3. Step 3: Cross multiply
    5,312.24x = 7,968.52 × 1,981.36
  4. Step 4: Simplify right side
    5,312.24x = 15,788,506.79
  5. Step 5: Solve for x
    x = 15,788,506.79/5,312.24
  6. Step 6: Final answer
    x = 2,972.10

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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.