Home / 2,423.37-3,344.55-1,428.74

Finding the Fourth Proportional to 2,423.37, 3,344.55 and 1,428.74

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Solution

The fourth proportional to 2,423.37, 3,344.55 and 1,428.74 is: 1,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.37 : 3,344.55 = 1,428.74 : x
  2. Step 2: Convert to fraction form
    2,423.37/3,344.55 = 1,428.74/x
  3. Step 3: Cross multiply
    2,423.37x = 3,344.55 × 1,428.74
  4. Step 4: Simplify right side
    2,423.37x = 4,778,492.37
  5. Step 5: Solve for x
    x = 4,778,492.37/2,423.37
  6. Step 6: Final answer
    x = 1,971.84

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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.