Home / 1,521.14-2,094.35-1,439.10

Finding the Fourth Proportional to 1,521.14, 2,094.35 and 1,439.10

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Solution

The fourth proportional to 1,521.14, 2,094.35 and 1,439.10 is: 1,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.14 : 2,094.35 = 1,439.10 : x
  2. Step 2: Convert to fraction form
    1,521.14/2,094.35 = 1,439.10/x
  3. Step 3: Cross multiply
    1,521.14x = 2,094.35 × 1,439.10
  4. Step 4: Simplify right side
    1,521.14x = 3,013,971.89
  5. Step 5: Solve for x
    x = 3,013,971.89/1,521.14
  6. Step 6: Final answer
    x = 1,981.40

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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.