Home / 6,721.30-9,271.84-3,994.29

Finding the Fourth Proportional to 6,721.30, 9,271.84 and 3,994.29

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Solution

The fourth proportional to 6,721.30, 9,271.84 and 3,994.29 is: 5,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.30 : 9,271.84 = 3,994.29 : x
  2. Step 2: Convert to fraction form
    6,721.30/9,271.84 = 3,994.29/x
  3. Step 3: Cross multiply
    6,721.30x = 9,271.84 × 3,994.29
  4. Step 4: Simplify right side
    6,721.30x = 37,034,417.79
  5. Step 5: Solve for x
    x = 37,034,417.79/6,721.30
  6. Step 6: Final answer
    x = 5,510.01

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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.