Home / 5,416.20-8,108.46-4,897.40

Finding the Fourth Proportional to 5,416.20, 8,108.46 and 4,897.40

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Solution

The fourth proportional to 5,416.20, 8,108.46 and 4,897.40 is: 7,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.20 : 8,108.46 = 4,897.40 : x
  2. Step 2: Convert to fraction form
    5,416.20/8,108.46 = 4,897.40/x
  3. Step 3: Cross multiply
    5,416.20x = 8,108.46 × 4,897.40
  4. Step 4: Simplify right side
    5,416.20x = 39,710,331.46
  5. Step 5: Solve for x
    x = 39,710,331.46/5,416.20
  6. Step 6: Final answer
    x = 7,331.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.