Home / 7,158.08-9,870.72-4,637.36

Finding the Fourth Proportional to 7,158.08, 9,870.72 and 4,637.36

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Solution

The fourth proportional to 7,158.08, 9,870.72 and 4,637.36 is: 6,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.08 : 9,870.72 = 4,637.36 : x
  2. Step 2: Convert to fraction form
    7,158.08/9,870.72 = 4,637.36/x
  3. Step 3: Cross multiply
    7,158.08x = 9,870.72 × 4,637.36
  4. Step 4: Simplify right side
    7,158.08x = 45,774,082.10
  5. Step 5: Solve for x
    x = 45,774,082.10/7,158.08
  6. Step 6: Final answer
    x = 6,394.74

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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.