Home / 2,457.47-3,390.36-1,573.80

Finding the Fourth Proportional to 2,457.47, 3,390.36 and 1,573.80

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Solution

The fourth proportional to 2,457.47, 3,390.36 and 1,573.80 is: 2,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.47 : 3,390.36 = 1,573.80 : x
  2. Step 2: Convert to fraction form
    2,457.47/3,390.36 = 1,573.80/x
  3. Step 3: Cross multiply
    2,457.47x = 3,390.36 × 1,573.80
  4. Step 4: Simplify right side
    2,457.47x = 5,335,729.95
  5. Step 5: Solve for x
    x = 5,335,729.95/2,457.47
  6. Step 6: Final answer
    x = 2,171.23

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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.