Home / 2,457.40-3,387.63-1,866.91

Finding the Fourth Proportional to 2,457.40, 3,387.63 and 1,866.91

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Solution

The fourth proportional to 2,457.40, 3,387.63 and 1,866.91 is: 2,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.40 : 3,387.63 = 1,866.91 : x
  2. Step 2: Convert to fraction form
    2,457.40/3,387.63 = 1,866.91/x
  3. Step 3: Cross multiply
    2,457.40x = 3,387.63 × 1,866.91
  4. Step 4: Simplify right side
    2,457.40x = 6,324,400.32
  5. Step 5: Solve for x
    x = 6,324,400.32/2,457.40
  6. Step 6: Final answer
    x = 2,573.61

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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.