Home / 1,657.28-2,285.70-1,457.68

Finding the Fourth Proportional to 1,657.28, 2,285.70 and 1,457.68

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Solution

The fourth proportional to 1,657.28, 2,285.70 and 1,457.68 is: 2,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.28 : 2,285.70 = 1,457.68 : x
  2. Step 2: Convert to fraction form
    1,657.28/2,285.70 = 1,457.68/x
  3. Step 3: Cross multiply
    1,657.28x = 2,285.70 × 1,457.68
  4. Step 4: Simplify right side
    1,657.28x = 3,331,819.18
  5. Step 5: Solve for x
    x = 3,331,819.18/1,657.28
  6. Step 6: Final answer
    x = 2,010.41

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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.