Home / 2,390.77-3,299.07-1,342.63

Finding the Fourth Proportional to 2,390.77, 3,299.07 and 1,342.63

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Solution

The fourth proportional to 2,390.77, 3,299.07 and 1,342.63 is: 1,852.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.77 : 3,299.07 = 1,342.63 : x
  2. Step 2: Convert to fraction form
    2,390.77/3,299.07 = 1,342.63/x
  3. Step 3: Cross multiply
    2,390.77x = 3,299.07 × 1,342.63
  4. Step 4: Simplify right side
    2,390.77x = 4,429,430.35
  5. Step 5: Solve for x
    x = 4,429,430.35/2,390.77
  6. Step 6: Final answer
    x = 1,852.72

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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.