Home / 2,457.74-3,391.38-1,395.63

Finding the Fourth Proportional to 2,457.74, 3,391.38 and 1,395.63

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Solution

The fourth proportional to 2,457.74, 3,391.38 and 1,395.63 is: 1,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.74 : 3,391.38 = 1,395.63 : x
  2. Step 2: Convert to fraction form
    2,457.74/3,391.38 = 1,395.63/x
  3. Step 3: Cross multiply
    2,457.74x = 3,391.38 × 1,395.63
  4. Step 4: Simplify right side
    2,457.74x = 4,733,111.67
  5. Step 5: Solve for x
    x = 4,733,111.67/2,457.74
  6. Step 6: Final answer
    x = 1,925.80

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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.