Home / 4,740.13-7,111.10-2,143.06

Finding the Fourth Proportional to 4,740.13, 7,111.10 and 2,143.06

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Solution

The fourth proportional to 4,740.13, 7,111.10 and 2,143.06 is: 3,215.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.13 : 7,111.10 = 2,143.06 : x
  2. Step 2: Convert to fraction form
    4,740.13/7,111.10 = 2,143.06/x
  3. Step 3: Cross multiply
    4,740.13x = 7,111.10 × 2,143.06
  4. Step 4: Simplify right side
    4,740.13x = 15,239,513.97
  5. Step 5: Solve for x
    x = 15,239,513.97/4,740.13
  6. Step 6: Final answer
    x = 3,215.00

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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.