Home / 5,051.61-6,970.72-2,813.40

Finding the Fourth Proportional to 5,051.61, 6,970.72 and 2,813.40

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Solution

The fourth proportional to 5,051.61, 6,970.72 and 2,813.40 is: 3,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,051.61 : 6,970.72 = 2,813.40 : x
  2. Step 2: Convert to fraction form
    5,051.61/6,970.72 = 2,813.40/x
  3. Step 3: Cross multiply
    5,051.61x = 6,970.72 × 2,813.40
  4. Step 4: Simplify right side
    5,051.61x = 19,611,423.65
  5. Step 5: Solve for x
    x = 19,611,423.65/5,051.61
  6. Step 6: Final answer
    x = 3,882.21

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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.