Home / 5,389.23-7,440.76-4,820.28

Finding the Fourth Proportional to 5,389.23, 7,440.76 and 4,820.28

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Solution

The fourth proportional to 5,389.23, 7,440.76 and 4,820.28 is: 6,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.23 : 7,440.76 = 4,820.28 : x
  2. Step 2: Convert to fraction form
    5,389.23/7,440.76 = 4,820.28/x
  3. Step 3: Cross multiply
    5,389.23x = 7,440.76 × 4,820.28
  4. Step 4: Simplify right side
    5,389.23x = 35,866,546.61
  5. Step 5: Solve for x
    x = 35,866,546.61/5,389.23
  6. Step 6: Final answer
    x = 6,655.23

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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.