Home / 2,470.21-3,409.37-1,587.13

Finding the Fourth Proportional to 2,470.21, 3,409.37 and 1,587.13

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Solution

The fourth proportional to 2,470.21, 3,409.37 and 1,587.13 is: 2,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.21 : 3,409.37 = 1,587.13 : x
  2. Step 2: Convert to fraction form
    2,470.21/3,409.37 = 1,587.13/x
  3. Step 3: Cross multiply
    2,470.21x = 3,409.37 × 1,587.13
  4. Step 4: Simplify right side
    2,470.21x = 5,411,113.41
  5. Step 5: Solve for x
    x = 5,411,113.41/2,470.21
  6. Step 6: Final answer
    x = 2,190.55

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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.