Home / 1,554.18-2,138.67-1,513.32

Finding the Fourth Proportional to 1,554.18, 2,138.67 and 1,513.32

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Solution

The fourth proportional to 1,554.18, 2,138.67 and 1,513.32 is: 2,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.18 : 2,138.67 = 1,513.32 : x
  2. Step 2: Convert to fraction form
    1,554.18/2,138.67 = 1,513.32/x
  3. Step 3: Cross multiply
    1,554.18x = 2,138.67 × 1,513.32
  4. Step 4: Simplify right side
    1,554.18x = 3,236,492.08
  5. Step 5: Solve for x
    x = 3,236,492.08/1,554.18
  6. Step 6: Final answer
    x = 2,082.44

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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.