Home / 2,330.90-3,216.21-1,386.93

Finding the Fourth Proportional to 2,330.90, 3,216.21 and 1,386.93

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Solution

The fourth proportional to 2,330.90, 3,216.21 and 1,386.93 is: 1,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.90 : 3,216.21 = 1,386.93 : x
  2. Step 2: Convert to fraction form
    2,330.90/3,216.21 = 1,386.93/x
  3. Step 3: Cross multiply
    2,330.90x = 3,216.21 × 1,386.93
  4. Step 4: Simplify right side
    2,330.90x = 4,460,658.14
  5. Step 5: Solve for x
    x = 4,460,658.14/2,330.90
  6. Step 6: Final answer
    x = 1,913.71

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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.