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Finding the Fourth Proportional to 4,649.44, 6,971.64 and 1,528.72

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Solution

The fourth proportional to 4,649.44, 6,971.64 and 1,528.72 is: 2,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.44 : 6,971.64 = 1,528.72 : x
  2. Step 2: Convert to fraction form
    4,649.44/6,971.64 = 1,528.72/x
  3. Step 3: Cross multiply
    4,649.44x = 6,971.64 × 1,528.72
  4. Step 4: Simplify right side
    4,649.44x = 10,657,685.50
  5. Step 5: Solve for x
    x = 10,657,685.50/4,649.44
  6. Step 6: Final answer
    x = 2,292.25

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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.