Home / 2,421.10-3,339.85-1,830.61

Finding the Fourth Proportional to 2,421.10, 3,339.85 and 1,830.61

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Solution

The fourth proportional to 2,421.10, 3,339.85 and 1,830.61 is: 2,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.10 : 3,339.85 = 1,830.61 : x
  2. Step 2: Convert to fraction form
    2,421.10/3,339.85 = 1,830.61/x
  3. Step 3: Cross multiply
    2,421.10x = 3,339.85 × 1,830.61
  4. Step 4: Simplify right side
    2,421.10x = 6,113,962.81
  5. Step 5: Solve for x
    x = 6,113,962.81/2,421.10
  6. Step 6: Final answer
    x = 2,525.28

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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.