Home / 4,989.42-7,484.25-1,657.74

Finding the Fourth Proportional to 4,989.42, 7,484.25 and 1,657.74

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Solution

The fourth proportional to 4,989.42, 7,484.25 and 1,657.74 is: 2,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.42 : 7,484.25 = 1,657.74 : x
  2. Step 2: Convert to fraction form
    4,989.42/7,484.25 = 1,657.74/x
  3. Step 3: Cross multiply
    4,989.42x = 7,484.25 × 1,657.74
  4. Step 4: Simplify right side
    4,989.42x = 12,406,940.60
  5. Step 5: Solve for x
    x = 12,406,940.60/4,989.42
  6. Step 6: Final answer
    x = 2,486.65

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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.