Home / 6,428.51-8,870.39-3,595.53

Finding the Fourth Proportional to 6,428.51, 8,870.39 and 3,595.53

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Solution

The fourth proportional to 6,428.51, 8,870.39 and 3,595.53 is: 4,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.51 : 8,870.39 = 3,595.53 : x
  2. Step 2: Convert to fraction form
    6,428.51/8,870.39 = 3,595.53/x
  3. Step 3: Cross multiply
    6,428.51x = 8,870.39 × 3,595.53
  4. Step 4: Simplify right side
    6,428.51x = 31,893,753.36
  5. Step 5: Solve for x
    x = 31,893,753.36/6,428.51
  6. Step 6: Final answer
    x = 4,961.30

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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.