Home / 4,328.30-6,488.46-1,405.10

Finding the Fourth Proportional to 4,328.30, 6,488.46 and 1,405.10

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Solution

The fourth proportional to 4,328.30, 6,488.46 and 1,405.10 is: 2,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,328.30 : 6,488.46 = 1,405.10 : x
  2. Step 2: Convert to fraction form
    4,328.30/6,488.46 = 1,405.10/x
  3. Step 3: Cross multiply
    4,328.30x = 6,488.46 × 1,405.10
  4. Step 4: Simplify right side
    4,328.30x = 9,116,935.15
  5. Step 5: Solve for x
    x = 9,116,935.15/4,328.30
  6. Step 6: Final answer
    x = 2,106.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.