Home / 1,547.91-2,332.34-1,280.01

Finding the Fourth Proportional to 1,547.91, 2,332.34 and 1,280.01

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Solution

The fourth proportional to 1,547.91, 2,332.34 and 1,280.01 is: 1,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.91 : 2,332.34 = 1,280.01 : x
  2. Step 2: Convert to fraction form
    1,547.91/2,332.34 = 1,280.01/x
  3. Step 3: Cross multiply
    1,547.91x = 2,332.34 × 1,280.01
  4. Step 4: Simplify right side
    1,547.91x = 2,985,412.12
  5. Step 5: Solve for x
    x = 2,985,412.12/1,547.91
  6. Step 6: Final answer
    x = 1,928.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.