Home / 1,968.81-2,951.39-1,560.57

Finding the Fourth Proportional to 1,968.81, 2,951.39 and 1,560.57

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Solution

The fourth proportional to 1,968.81, 2,951.39 and 1,560.57 is: 2,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.81 : 2,951.39 = 1,560.57 : x
  2. Step 2: Convert to fraction form
    1,968.81/2,951.39 = 1,560.57/x
  3. Step 3: Cross multiply
    1,968.81x = 2,951.39 × 1,560.57
  4. Step 4: Simplify right side
    1,968.81x = 4,605,842.89
  5. Step 5: Solve for x
    x = 4,605,842.89/1,968.81
  6. Step 6: Final answer
    x = 2,339.40

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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.