Home / 4,628.10-6,386.95-2,638.64

Finding the Fourth Proportional to 4,628.10, 6,386.95 and 2,638.64

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Solution

The fourth proportional to 4,628.10, 6,386.95 and 2,638.64 is: 3,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,628.10 : 6,386.95 = 2,638.64 : x
  2. Step 2: Convert to fraction form
    4,628.10/6,386.95 = 2,638.64/x
  3. Step 3: Cross multiply
    4,628.10x = 6,386.95 × 2,638.64
  4. Step 4: Simplify right side
    4,628.10x = 16,852,823.22
  5. Step 5: Solve for x
    x = 16,852,823.22/4,628.10
  6. Step 6: Final answer
    x = 3,641.41

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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.