Home / 6,290.48-8,678.56-4,405.04

Finding the Fourth Proportional to 6,290.48, 8,678.56 and 4,405.04

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Solution

The fourth proportional to 6,290.48, 8,678.56 and 4,405.04 is: 6,077.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.48 : 8,678.56 = 4,405.04 : x
  2. Step 2: Convert to fraction form
    6,290.48/8,678.56 = 4,405.04/x
  3. Step 3: Cross multiply
    6,290.48x = 8,678.56 × 4,405.04
  4. Step 4: Simplify right side
    6,290.48x = 38,229,403.94
  5. Step 5: Solve for x
    x = 38,229,403.94/6,290.48
  6. Step 6: Final answer
    x = 6,077.34

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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.