Home / 5,685.60-8,490.03-4,647.63

Finding the Fourth Proportional to 5,685.60, 8,490.03 and 4,647.63

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Solution

The fourth proportional to 5,685.60, 8,490.03 and 4,647.63 is: 6,940.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.60 : 8,490.03 = 4,647.63 : x
  2. Step 2: Convert to fraction form
    5,685.60/8,490.03 = 4,647.63/x
  3. Step 3: Cross multiply
    5,685.60x = 8,490.03 × 4,647.63
  4. Step 4: Simplify right side
    5,685.60x = 39,458,518.13
  5. Step 5: Solve for x
    x = 39,458,518.13/5,685.60
  6. Step 6: Final answer
    x = 6,940.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.