Home / 1,392.10-2,088.11-352.14

Finding the Fourth Proportional to 1,392.10, 2,088.11 and 352.14

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Solution

The fourth proportional to 1,392.10, 2,088.11 and 352.14 is: 528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.10 : 2,088.11 = 352.14 : x
  2. Step 2: Convert to fraction form
    1,392.10/2,088.11 = 352.14/x
  3. Step 3: Cross multiply
    1,392.10x = 2,088.11 × 352.14
  4. Step 4: Simplify right side
    1,392.10x = 735,307.06
  5. Step 5: Solve for x
    x = 735,307.06/1,392.10
  6. Step 6: Final answer
    x = 528.20

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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.