Home / 4,688.28-7,009.56-4,003.20

Finding the Fourth Proportional to 4,688.28, 7,009.56 and 4,003.20

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Solution

The fourth proportional to 4,688.28, 7,009.56 and 4,003.20 is: 5,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.28 : 7,009.56 = 4,003.20 : x
  2. Step 2: Convert to fraction form
    4,688.28/7,009.56 = 4,003.20/x
  3. Step 3: Cross multiply
    4,688.28x = 7,009.56 × 4,003.20
  4. Step 4: Simplify right side
    4,688.28x = 28,060,670.59
  5. Step 5: Solve for x
    x = 28,060,670.59/4,688.28
  6. Step 6: Final answer
    x = 5,985.28

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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.