Home / 2,899.50-4,001.58-1,657.50

Finding the Fourth Proportional to 2,899.50, 4,001.58 and 1,657.50

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Solution

The fourth proportional to 2,899.50, 4,001.58 and 1,657.50 is: 2,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.50 : 4,001.58 = 1,657.50 : x
  2. Step 2: Convert to fraction form
    2,899.50/4,001.58 = 1,657.50/x
  3. Step 3: Cross multiply
    2,899.50x = 4,001.58 × 1,657.50
  4. Step 4: Simplify right side
    2,899.50x = 6,632,618.85
  5. Step 5: Solve for x
    x = 6,632,618.85/2,899.50
  6. Step 6: Final answer
    x = 2,287.50

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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.