Home / 2,140.18-3,210.26-580.18

Finding the Fourth Proportional to 2,140.18, 3,210.26 and 580.18

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Solution

The fourth proportional to 2,140.18, 3,210.26 and 580.18 is: 870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.18 : 3,210.26 = 580.18 : x
  2. Step 2: Convert to fraction form
    2,140.18/3,210.26 = 580.18/x
  3. Step 3: Cross multiply
    2,140.18x = 3,210.26 × 580.18
  4. Step 4: Simplify right side
    2,140.18x = 1,862,532.14
  5. Step 5: Solve for x
    x = 1,862,532.14/2,140.18
  6. Step 6: Final answer
    x = 870.27

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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.