Home / 2,389.48-3,296.90-1,830.58

Finding the Fourth Proportional to 2,389.48, 3,296.90 and 1,830.58

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Solution

The fourth proportional to 2,389.48, 3,296.90 and 1,830.58 is: 2,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.48 : 3,296.90 = 1,830.58 : x
  2. Step 2: Convert to fraction form
    2,389.48/3,296.90 = 1,830.58/x
  3. Step 3: Cross multiply
    2,389.48x = 3,296.90 × 1,830.58
  4. Step 4: Simplify right side
    2,389.48x = 6,035,239.20
  5. Step 5: Solve for x
    x = 6,035,239.20/2,389.48
  6. Step 6: Final answer
    x = 2,525.75

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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.