Home / 1,947.23-2,688.96-1,419.16

Finding the Fourth Proportional to 1,947.23, 2,688.96 and 1,419.16

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Solution

The fourth proportional to 1,947.23, 2,688.96 and 1,419.16 is: 1,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.23 : 2,688.96 = 1,419.16 : x
  2. Step 2: Convert to fraction form
    1,947.23/2,688.96 = 1,419.16/x
  3. Step 3: Cross multiply
    1,947.23x = 2,688.96 × 1,419.16
  4. Step 4: Simplify right side
    1,947.23x = 3,816,064.47
  5. Step 5: Solve for x
    x = 3,816,064.47/1,947.23
  6. Step 6: Final answer
    x = 1,959.74

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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.