Home / 6,385.07-8,812.61-3,590.57

Finding the Fourth Proportional to 6,385.07, 8,812.61 and 3,590.57

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Solution

The fourth proportional to 6,385.07, 8,812.61 and 3,590.57 is: 4,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.07 : 8,812.61 = 3,590.57 : x
  2. Step 2: Convert to fraction form
    6,385.07/8,812.61 = 3,590.57/x
  3. Step 3: Cross multiply
    6,385.07x = 8,812.61 × 3,590.57
  4. Step 4: Simplify right side
    6,385.07x = 31,642,324.10
  5. Step 5: Solve for x
    x = 31,642,324.10/6,385.07
  6. Step 6: Final answer
    x = 4,955.67

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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.