Home / 4,642.61-6,407.74-3,151.01

Finding the Fourth Proportional to 4,642.61, 6,407.74 and 3,151.01

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Solution

The fourth proportional to 4,642.61, 6,407.74 and 3,151.01 is: 4,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.61 : 6,407.74 = 3,151.01 : x
  2. Step 2: Convert to fraction form
    4,642.61/6,407.74 = 3,151.01/x
  3. Step 3: Cross multiply
    4,642.61x = 6,407.74 × 3,151.01
  4. Step 4: Simplify right side
    4,642.61x = 20,190,824.72
  5. Step 5: Solve for x
    x = 20,190,824.72/4,642.61
  6. Step 6: Final answer
    x = 4,349.03

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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.