Home / 7,225.34-9,970.79-4,038.66

Finding the Fourth Proportional to 7,225.34, 9,970.79 and 4,038.66

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Solution

The fourth proportional to 7,225.34, 9,970.79 and 4,038.66 is: 5,573.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.34 : 9,970.79 = 4,038.66 : x
  2. Step 2: Convert to fraction form
    7,225.34/9,970.79 = 4,038.66/x
  3. Step 3: Cross multiply
    7,225.34x = 9,970.79 × 4,038.66
  4. Step 4: Simplify right side
    7,225.34x = 40,268,610.55
  5. Step 5: Solve for x
    x = 40,268,610.55/7,225.34
  6. Step 6: Final answer
    x = 5,573.25

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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.