Home / 2,435.18-3,360.84-1,387.45

Finding the Fourth Proportional to 2,435.18, 3,360.84 and 1,387.45

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Solution

The fourth proportional to 2,435.18, 3,360.84 and 1,387.45 is: 1,914.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.18 : 3,360.84 = 1,387.45 : x
  2. Step 2: Convert to fraction form
    2,435.18/3,360.84 = 1,387.45/x
  3. Step 3: Cross multiply
    2,435.18x = 3,360.84 × 1,387.45
  4. Step 4: Simplify right side
    2,435.18x = 4,662,980.65
  5. Step 5: Solve for x
    x = 4,662,980.65/2,435.18
  6. Step 6: Final answer
    x = 1,914.84

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1.5x scale

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.