Home / 2,507.63-3,460.73-1,388.68

Finding the Fourth Proportional to 2,507.63, 3,460.73 and 1,388.68

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Solution

The fourth proportional to 2,507.63, 3,460.73 and 1,388.68 is: 1,916.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.63 : 3,460.73 = 1,388.68 : x
  2. Step 2: Convert to fraction form
    2,507.63/3,460.73 = 1,388.68/x
  3. Step 3: Cross multiply
    2,507.63x = 3,460.73 × 1,388.68
  4. Step 4: Simplify right side
    2,507.63x = 4,805,829.66
  5. Step 5: Solve for x
    x = 4,805,829.66/2,507.63
  6. Step 6: Final answer
    x = 1,916.48

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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.