Home / 2,457.16-3,390.86-1,338.08

Finding the Fourth Proportional to 2,457.16, 3,390.86 and 1,338.08

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Solution

The fourth proportional to 2,457.16, 3,390.86 and 1,338.08 is: 1,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.16 : 3,390.86 = 1,338.08 : x
  2. Step 2: Convert to fraction form
    2,457.16/3,390.86 = 1,338.08/x
  3. Step 3: Cross multiply
    2,457.16x = 3,390.86 × 1,338.08
  4. Step 4: Simplify right side
    2,457.16x = 4,537,228.34
  5. Step 5: Solve for x
    x = 4,537,228.34/2,457.16
  6. Step 6: Final answer
    x = 1,846.54

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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.