Home / 6,220.48-8,582.88-3,702.40

Finding the Fourth Proportional to 6,220.48, 8,582.88 and 3,702.40

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Solution

The fourth proportional to 6,220.48, 8,582.88 and 3,702.40 is: 5,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.48 : 8,582.88 = 3,702.40 : x
  2. Step 2: Convert to fraction form
    6,220.48/8,582.88 = 3,702.40/x
  3. Step 3: Cross multiply
    6,220.48x = 8,582.88 × 3,702.40
  4. Step 4: Simplify right side
    6,220.48x = 31,777,254.91
  5. Step 5: Solve for x
    x = 31,777,254.91/6,220.48
  6. Step 6: Final answer
    x = 5,108.49

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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.