Home / 1,439.65-2,144.98-1,345.35

Finding the Fourth Proportional to 1,439.65, 2,144.98 and 1,345.35

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Solution

The fourth proportional to 1,439.65, 2,144.98 and 1,345.35 is: 2,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.65 : 2,144.98 = 1,345.35 : x
  2. Step 2: Convert to fraction form
    1,439.65/2,144.98 = 1,345.35/x
  3. Step 3: Cross multiply
    1,439.65x = 2,144.98 × 1,345.35
  4. Step 4: Simplify right side
    1,439.65x = 2,885,748.84
  5. Step 5: Solve for x
    x = 2,885,748.84/1,439.65
  6. Step 6: Final answer
    x = 2,004.48

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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.