Home / 3,210.34-4,428.93-2,160.58

Finding the Fourth Proportional to 3,210.34, 4,428.93 and 2,160.58

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Solution

The fourth proportional to 3,210.34, 4,428.93 and 2,160.58 is: 2,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.34 : 4,428.93 = 2,160.58 : x
  2. Step 2: Convert to fraction form
    3,210.34/4,428.93 = 2,160.58/x
  3. Step 3: Cross multiply
    3,210.34x = 4,428.93 × 2,160.58
  4. Step 4: Simplify right side
    3,210.34x = 9,569,057.58
  5. Step 5: Solve for x
    x = 9,569,057.58/3,210.34
  6. Step 6: Final answer
    x = 2,980.70

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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.