Home / 7,072.48-10,607.20-2,688.32

Finding the Fourth Proportional to 7,072.48, 10,607.20 and 2,688.32

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Solution

The fourth proportional to 7,072.48, 10,607.20 and 2,688.32 is: 4,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.48 : 10,607.20 = 2,688.32 : x
  2. Step 2: Convert to fraction form
    7,072.48/10,607.20 = 2,688.32/x
  3. Step 3: Cross multiply
    7,072.48x = 10,607.20 × 2,688.32
  4. Step 4: Simplify right side
    7,072.48x = 28,515,547.90
  5. Step 5: Solve for x
    x = 28,515,547.90/7,072.48
  6. Step 6: Final answer
    x = 4,031.90

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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.