Home / 2,102.36-2,901.32-1,158.18

Finding the Fourth Proportional to 2,102.36, 2,901.32 and 1,158.18

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Solution

The fourth proportional to 2,102.36, 2,901.32 and 1,158.18 is: 1,598.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.36 : 2,901.32 = 1,158.18 : x
  2. Step 2: Convert to fraction form
    2,102.36/2,901.32 = 1,158.18/x
  3. Step 3: Cross multiply
    2,102.36x = 2,901.32 × 1,158.18
  4. Step 4: Simplify right side
    2,102.36x = 3,360,254.79
  5. Step 5: Solve for x
    x = 3,360,254.79/2,102.36
  6. Step 6: Final answer
    x = 1,598.33

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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.