Home / 7,787.21-10,746.59-4,429.40

Finding the Fourth Proportional to 7,787.21, 10,746.59 and 4,429.40

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Solution

The fourth proportional to 7,787.21, 10,746.59 and 4,429.40 is: 6,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.21 : 10,746.59 = 4,429.40 : x
  2. Step 2: Convert to fraction form
    7,787.21/10,746.59 = 4,429.40/x
  3. Step 3: Cross multiply
    7,787.21x = 10,746.59 × 4,429.40
  4. Step 4: Simplify right side
    7,787.21x = 47,600,950.47
  5. Step 5: Solve for x
    x = 47,600,950.47/7,787.21
  6. Step 6: Final answer
    x = 6,112.71

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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.