Home / 7,420.02-10,238.22-4,587.72

Finding the Fourth Proportional to 7,420.02, 10,238.22 and 4,587.72

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Solution

The fourth proportional to 7,420.02, 10,238.22 and 4,587.72 is: 6,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.02 : 10,238.22 = 4,587.72 : x
  2. Step 2: Convert to fraction form
    7,420.02/10,238.22 = 4,587.72/x
  3. Step 3: Cross multiply
    7,420.02x = 10,238.22 × 4,587.72
  4. Step 4: Simplify right side
    7,420.02x = 46,970,086.66
  5. Step 5: Solve for x
    x = 46,970,086.66/7,420.02
  6. Step 6: Final answer
    x = 6,330.18

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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.