Home / 7,770.12-10,722.87-4,628.10

Finding the Fourth Proportional to 7,770.12, 10,722.87 and 4,628.10

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Solution

The fourth proportional to 7,770.12, 10,722.87 and 4,628.10 is: 6,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.12 : 10,722.87 = 4,628.10 : x
  2. Step 2: Convert to fraction form
    7,770.12/10,722.87 = 4,628.10/x
  3. Step 3: Cross multiply
    7,770.12x = 10,722.87 × 4,628.10
  4. Step 4: Simplify right side
    7,770.12x = 49,626,514.65
  5. Step 5: Solve for x
    x = 49,626,514.65/7,770.12
  6. Step 6: Final answer
    x = 6,386.84

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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.