Home / 2,345.68-3,513.81-1,114.28

Finding the Fourth Proportional to 2,345.68, 3,513.81 and 1,114.28

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Solution

The fourth proportional to 2,345.68, 3,513.81 and 1,114.28 is: 1,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.68 : 3,513.81 = 1,114.28 : x
  2. Step 2: Convert to fraction form
    2,345.68/3,513.81 = 1,114.28/x
  3. Step 3: Cross multiply
    2,345.68x = 3,513.81 × 1,114.28
  4. Step 4: Simplify right side
    2,345.68x = 3,915,368.21
  5. Step 5: Solve for x
    x = 3,915,368.21/2,345.68
  6. Step 6: Final answer
    x = 1,669.19

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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.