Home / 1,639.98-2,457.54-1,518.48

Finding the Fourth Proportional to 1,639.98, 2,457.54 and 1,518.48

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Solution

The fourth proportional to 1,639.98, 2,457.54 and 1,518.48 is: 2,275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.98 : 2,457.54 = 1,518.48 : x
  2. Step 2: Convert to fraction form
    1,639.98/2,457.54 = 1,518.48/x
  3. Step 3: Cross multiply
    1,639.98x = 2,457.54 × 1,518.48
  4. Step 4: Simplify right side
    1,639.98x = 3,731,725.34
  5. Step 5: Solve for x
    x = 3,731,725.34/1,639.98
  6. Step 6: Final answer
    x = 2,275.47

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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.