Home / 1,354.24-2,030.28-860.14

Finding the Fourth Proportional to 1,354.24, 2,030.28 and 860.14

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Solution

The fourth proportional to 1,354.24, 2,030.28 and 860.14 is: 1,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.24 : 2,030.28 = 860.14 : x
  2. Step 2: Convert to fraction form
    1,354.24/2,030.28 = 860.14/x
  3. Step 3: Cross multiply
    1,354.24x = 2,030.28 × 860.14
  4. Step 4: Simplify right side
    1,354.24x = 1,746,325.04
  5. Step 5: Solve for x
    x = 1,746,325.04/1,354.24
  6. Step 6: Final answer
    x = 1,289.52

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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.