Home / 2,492.40-3,440.04-1,430.34

Finding the Fourth Proportional to 2,492.40, 3,440.04 and 1,430.34

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Solution

The fourth proportional to 2,492.40, 3,440.04 and 1,430.34 is: 1,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492.40 : 3,440.04 = 1,430.34 : x
  2. Step 2: Convert to fraction form
    2,492.40/3,440.04 = 1,430.34/x
  3. Step 3: Cross multiply
    2,492.40x = 3,440.04 × 1,430.34
  4. Step 4: Simplify right side
    2,492.40x = 4,920,439.97
  5. Step 5: Solve for x
    x = 4,920,439.97/2,492.40
  6. Step 6: Final answer
    x = 1,974.17

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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.