Home / 7,030.78-9,700.90-4,199.16

Finding the Fourth Proportional to 7,030.78, 9,700.90 and 4,199.16

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Solution

The fourth proportional to 7,030.78, 9,700.90 and 4,199.16 is: 5,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.78 : 9,700.90 = 4,199.16 : x
  2. Step 2: Convert to fraction form
    7,030.78/9,700.90 = 4,199.16/x
  3. Step 3: Cross multiply
    7,030.78x = 9,700.90 × 4,199.16
  4. Step 4: Simplify right side
    7,030.78x = 40,735,631.24
  5. Step 5: Solve for x
    x = 40,735,631.24/7,030.78
  6. Step 6: Final answer
    x = 5,793.90

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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.