Home / 1,210.05-1,806.30-1,025.46

Finding the Fourth Proportional to 1,210.05, 1,806.30 and 1,025.46

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Solution

The fourth proportional to 1,210.05, 1,806.30 and 1,025.46 is: 1,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.05 : 1,806.30 = 1,025.46 : x
  2. Step 2: Convert to fraction form
    1,210.05/1,806.30 = 1,025.46/x
  3. Step 3: Cross multiply
    1,210.05x = 1,806.30 × 1,025.46
  4. Step 4: Simplify right side
    1,210.05x = 1,852,288.40
  5. Step 5: Solve for x
    x = 1,852,288.40/1,210.05
  6. Step 6: Final answer
    x = 1,530.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.