Home / 7,767.10-10,718.28-4,230.34

Finding the Fourth Proportional to 7,767.10, 10,718.28 and 4,230.34

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Solution

The fourth proportional to 7,767.10, 10,718.28 and 4,230.34 is: 5,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.10 : 10,718.28 = 4,230.34 : x
  2. Step 2: Convert to fraction form
    7,767.10/10,718.28 = 4,230.34/x
  3. Step 3: Cross multiply
    7,767.10x = 10,718.28 × 4,230.34
  4. Step 4: Simplify right side
    7,767.10x = 45,341,968.62
  5. Step 5: Solve for x
    x = 45,341,968.62/7,767.10
  6. Step 6: Final answer
    x = 5,837.70

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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.