Home / 1,948.56-2,688.09-1,151.35

Finding the Fourth Proportional to 1,948.56, 2,688.09 and 1,151.35

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Solution

The fourth proportional to 1,948.56, 2,688.09 and 1,151.35 is: 1,588.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.56 : 2,688.09 = 1,151.35 : x
  2. Step 2: Convert to fraction form
    1,948.56/2,688.09 = 1,151.35/x
  3. Step 3: Cross multiply
    1,948.56x = 2,688.09 × 1,151.35
  4. Step 4: Simplify right side
    1,948.56x = 3,094,920.72
  5. Step 5: Solve for x
    x = 3,094,920.72/1,948.56
  6. Step 6: Final answer
    x = 1,588.32

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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.