Home / 5,477.40-8,211.30-4,894.20

Finding the Fourth Proportional to 5,477.40, 8,211.30 and 4,894.20

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Solution

The fourth proportional to 5,477.40, 8,211.30 and 4,894.20 is: 7,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.40 : 8,211.30 = 4,894.20 : x
  2. Step 2: Convert to fraction form
    5,477.40/8,211.30 = 4,894.20/x
  3. Step 3: Cross multiply
    5,477.40x = 8,211.30 × 4,894.20
  4. Step 4: Simplify right side
    5,477.40x = 40,187,744.46
  5. Step 5: Solve for x
    x = 40,187,744.46/5,477.40
  6. Step 6: Final answer
    x = 7,337.01

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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.