Home / 2,918.54-4,025.30-1,870.70

Finding the Fourth Proportional to 2,918.54, 4,025.30 and 1,870.70

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Solution

The fourth proportional to 2,918.54, 4,025.30 and 1,870.70 is: 2,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.54 : 4,025.30 = 1,870.70 : x
  2. Step 2: Convert to fraction form
    2,918.54/4,025.30 = 1,870.70/x
  3. Step 3: Cross multiply
    2,918.54x = 4,025.30 × 1,870.70
  4. Step 4: Simplify right side
    2,918.54x = 7,530,128.71
  5. Step 5: Solve for x
    x = 7,530,128.71/2,918.54
  6. Step 6: Final answer
    x = 2,580.10

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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.