Home / 3,529.81-4,870.78-2,113.21

Finding the Fourth Proportional to 3,529.81, 4,870.78 and 2,113.21

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Solution

The fourth proportional to 3,529.81, 4,870.78 and 2,113.21 is: 2,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.81 : 4,870.78 = 2,113.21 : x
  2. Step 2: Convert to fraction form
    3,529.81/4,870.78 = 2,113.21/x
  3. Step 3: Cross multiply
    3,529.81x = 4,870.78 × 2,113.21
  4. Step 4: Simplify right side
    3,529.81x = 10,292,981.00
  5. Step 5: Solve for x
    x = 10,292,981.00/3,529.81
  6. Step 6: Final answer
    x = 2,916.02

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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.