Home / 7,130.03-9,838.94-4,145.65

Finding the Fourth Proportional to 7,130.03, 9,838.94 and 4,145.65

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Solution

The fourth proportional to 7,130.03, 9,838.94 and 4,145.65 is: 5,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.03 : 9,838.94 = 4,145.65 : x
  2. Step 2: Convert to fraction form
    7,130.03/9,838.94 = 4,145.65/x
  3. Step 3: Cross multiply
    7,130.03x = 9,838.94 × 4,145.65
  4. Step 4: Simplify right side
    7,130.03x = 40,788,756.29
  5. Step 5: Solve for x
    x = 40,788,756.29/7,130.03
  6. Step 6: Final answer
    x = 5,720.70

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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.