Home / 1,557.08-2,148.78-848.93

Finding the Fourth Proportional to 1,557.08, 2,148.78 and 848.93

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Solution

The fourth proportional to 1,557.08, 2,148.78 and 848.93 is: 1,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.08 : 2,148.78 = 848.93 : x
  2. Step 2: Convert to fraction form
    1,557.08/2,148.78 = 848.93/x
  3. Step 3: Cross multiply
    1,557.08x = 2,148.78 × 848.93
  4. Step 4: Simplify right side
    1,557.08x = 1,824,163.81
  5. Step 5: Solve for x
    x = 1,824,163.81/1,557.08
  6. Step 6: Final answer
    x = 1,171.53

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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.