Home / 3,742,719.47-5,164,946.74-2,111,121.76

Finding the Fourth Proportional to 3,742,719.47, 5,164,946.74 and 2,111,121.76

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Solution

The fourth proportional to 3,742,719.47, 5,164,946.74 and 2,111,121.76 is: 2,913,344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742,719.47 : 5,164,946.74 = 2,111,121.76 : x
  2. Step 2: Convert to fraction form
    3,742,719.47/5,164,946.74 = 2,111,121.76/x
  3. Step 3: Cross multiply
    3,742,719.47x = 5,164,946.74 × 2,111,121.76
  4. Step 4: Simplify right side
    3,742,719.47x = 10,903,831,452,055.06
  5. Step 5: Solve for x
    x = 10,903,831,452,055.06/3,742,719.47
  6. Step 6: Final answer
    x = 2,913,344.57

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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.